Mercurial > projects > dwt-addons
annotate dwtx/jface/resource/FileImageDescriptor.d @ 40:da5ad8eedf5d
debug prints, dwt.dwthelper restructure, ...
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Thu, 10 Apr 2008 08:59:39 +0200 |
| parents | c884a1ab6db3 |
| children | ea8ff534f622 |
| rev | line source |
|---|---|
| 4 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2006 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwtx.jface.resource.FileImageDescriptor; | |
| 14 | |
| 15 import dwtx.jface.resource.ImageDescriptor; | |
| 16 | |
| 17 // import java.io.BufferedInputStream; | |
| 18 // import java.io.FileInputStream; | |
| 19 // import java.io.FileNotFoundException; | |
| 20 // import java.io.IOException; | |
| 21 // import java.io.InputStream; | |
| 22 | |
| 23 import dwt.DWT; | |
| 24 import dwt.DWTException; | |
| 25 import dwt.graphics.ImageData; | |
| 26 | |
| 27 import dwt.dwthelper.utils; | |
| 28 import dwt.dwthelper.InputStream; | |
| 29 import dwt.dwthelper.FileInputStream; | |
| 30 import dwt.dwthelper.BufferedInputStream; | |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
31 import dwt.dwthelper.ByteArrayInputStream; |
| 4 | 32 |
|
40
da5ad8eedf5d
debug prints, dwt.dwthelper restructure, ...
Frank Benoit <benoit@tionex.de>
parents:
38
diff
changeset
|
33 import tango.util.log.Trace; |
|
da5ad8eedf5d
debug prints, dwt.dwthelper restructure, ...
Frank Benoit <benoit@tionex.de>
parents:
38
diff
changeset
|
34 |
| 4 | 35 /** |
| 36 * An image descriptor that loads its image information | |
| 37 * from a file. | |
| 38 */ | |
| 39 class FileImageDescriptor : ImageDescriptor { | |
| 40 | |
| 41 /** | |
| 42 * The class whose resource directory contain the file, | |
| 43 * or <code>null</code> if none. | |
| 44 */ | |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
45 // private ClassInfo location; |
| 4 | 46 |
| 47 /** | |
| 48 * The name of the file. | |
| 49 */ | |
|
40
da5ad8eedf5d
debug prints, dwt.dwthelper restructure, ...
Frank Benoit <benoit@tionex.de>
parents:
38
diff
changeset
|
50 private String name; |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
51 private void[] importdata; |
| 4 | 52 |
| 53 /** | |
| 54 * Creates a new file image descriptor. | |
| 55 * The file has the given file name and is located | |
| 56 * in the given class's resource directory. If the given | |
| 57 * class is <code>null</code>, the file name must be absolute. | |
| 58 * <p> | |
| 59 * Note that the file is not accessed until its | |
| 60 * <code>getImageDate</code> method is called. | |
| 61 * </p> | |
| 62 * | |
| 63 * @param clazz class for resource directory, or | |
| 64 * <code>null</code> | |
| 65 * @param filename the name of the file | |
| 66 */ | |
|
40
da5ad8eedf5d
debug prints, dwt.dwthelper restructure, ...
Frank Benoit <benoit@tionex.de>
parents:
38
diff
changeset
|
67 this(ImportData importdata) { |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
68 // this.location = clazz; |
|
40
da5ad8eedf5d
debug prints, dwt.dwthelper restructure, ...
Frank Benoit <benoit@tionex.de>
parents:
38
diff
changeset
|
69 this.name = importdata.name; |
|
da5ad8eedf5d
debug prints, dwt.dwthelper restructure, ...
Frank Benoit <benoit@tionex.de>
parents:
38
diff
changeset
|
70 this.importdata = importdata.data; |
| 4 | 71 } |
| 72 | |
| 73 /* (non-Javadoc) | |
| 74 * Method declared on Object. | |
| 75 */ | |
| 76 public bool equals(Object o) { | |
| 77 if (!( cast(FileImageDescriptor)o )) { | |
| 78 return false; | |
| 79 } | |
| 80 FileImageDescriptor other = cast(FileImageDescriptor) o; | |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
81 // if (location !is null) { |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
82 // if ( location.name != other.location.name ) { |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
83 // return false; |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
84 // } |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
85 // } else { |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
86 // if (other.location !is null) { |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
87 // return false; |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
88 // } |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
89 // } |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
90 return importdata == other.importdata; |
| 4 | 91 } |
| 92 | |
| 93 /* (non-Javadoc) | |
| 94 * Method declared on ImageDesciptor. | |
| 95 * Returns null if the image data cannot be read. | |
| 96 */ | |
| 97 public ImageData getImageData() { | |
| 98 InputStream in_ = getStream(); | |
| 99 ImageData result = null; | |
| 100 if (in_ !is null) { | |
| 101 try { | |
| 102 result = new ImageData(in_); | |
| 103 } catch (DWTException e) { | |
|
40
da5ad8eedf5d
debug prints, dwt.dwthelper restructure, ...
Frank Benoit <benoit@tionex.de>
parents:
38
diff
changeset
|
104 if (e.code !is DWT.ERROR_INVALID_IMAGE /+&& e.code !is DWT.ERROR_UNSUPPORTED_FORMAT+/) { |
|
da5ad8eedf5d
debug prints, dwt.dwthelper restructure, ...
Frank Benoit <benoit@tionex.de>
parents:
38
diff
changeset
|
105 Trace.formatln( "FileImageDescriptor getImageData DWTException for name={}", name ); |
| 4 | 106 throw e; |
| 107 // fall through otherwise | |
| 108 } | |
| 109 } finally { | |
| 110 in_.close(); | |
| 111 } | |
| 112 } | |
| 113 return result; | |
| 114 } | |
| 115 | |
| 116 /** | |
| 117 * Returns a stream on the image contents. Returns | |
| 118 * null if a stream could not be opened. | |
| 119 * | |
| 120 * @return the buffered stream on the file or <code>null</code> | |
| 121 * if the file cannot be found | |
| 122 */ | |
| 123 private InputStream getStream() { | |
| 124 InputStream is_ = null; | |
| 125 | |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
126 // if (location !is null) { |
|
40
da5ad8eedf5d
debug prints, dwt.dwthelper restructure, ...
Frank Benoit <benoit@tionex.de>
parents:
38
diff
changeset
|
127 // Trace.formatln( "FileImageDescriptor getStream importdata.length={} name={}",importdata.length, name ); |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
128 is_ = new ByteArrayInputStream(cast(byte[]) importdata); |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
129 // is_ = ClassInfoGetResourceAsStream( location, name); |
| 4 | 130 |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
131 // } else { |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
132 // try { |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
133 // is_ = new FileInputStream(name); |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
134 // } catch (/+FileNotFoundException+/ IOException e) { |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
135 // return null; |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
136 // } |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
137 // } |
| 4 | 138 if (is_ is null) { |
| 139 return null; | |
| 140 } else { | |
| 141 return new BufferedInputStream(is_); | |
| 142 } | |
| 143 } | |
| 144 | |
| 145 /* (non-Javadoc) | |
| 146 * Method declared on Object. | |
| 147 */ | |
| 148 public override hash_t toHash() { | |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
149 int code = dwt.dwthelper.utils.toHash(cast(char[])importdata/+name+/); |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
150 // if (location !is null) { |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
151 // code += location.toHash(); |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
152 // } |
| 4 | 153 return code; |
| 154 } | |
| 155 | |
| 156 /* (non-Javadoc) | |
| 157 * Method declared on Object. | |
| 158 */ | |
| 159 /** | |
| 160 * The <code>FileImageDescriptor</code> implementation of this <code>Object</code> method | |
| 161 * returns a string representation of this object which is suitable only for debugging. | |
| 162 */ | |
| 163 public override String toString() { | |
|
38
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
164 // return "FileImageDescriptor(location=" ~ location.toString() ~ ", name=" ~ name ~ ")";//$NON-NLS-3$//$NON-NLS-2$//$NON-NLS-1$ |
|
c884a1ab6db3
resource loading, fix type in image names
Frank Benoit <benoit@tionex.de>
parents:
4
diff
changeset
|
165 return "FileImageDescriptor()";//$NON-NLS-3$//$NON-NLS-2$//$NON-NLS-1$ |
| 4 | 166 } |
| 167 } |